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A102258 Begin with 5, multiply each digit by 2. 0
5, 10, 2, 0, 4, 0, 8, 0, 16, 0, 2, 12, 0, 4, 2, 4, 0, 8, 4, 8, 0, 16, 8, 16, 0, 2, 12, 16, 2, 12, 0, 4, 2, 4, 2, 12, 4, 2, 4, 0, 8, 4, 8, 4, 2, 4, 8, 4, 8, 0, 16, 8, 16, 8, 4, 8, 16, 8, 16, 0, 2, 12, 16, 2, 12, 16, 8, 16, 2, 12, 16, 2, 12, 0, 4, 2, 4, 2, 12, 4, 2, 4, 2, 12, 16, 2, 12, 4, 2, 4, 2, 12, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..93.

FORMULA

d*2, beginning with 5

EXAMPLE

Read a(2)=10 which produces a(3)=2 & a(4)=0 because 1*2=2 and 0*2=0

Now read a(3)=2 which produces [a(4) is already written] a(5)=4 because 2*2=4.

MATHEMATICA

Flatten[ NestList[ Function[x, Flatten[FromDigits /@ 2IntegerDigits[x]]], 5, 15]] (* Robert G. Wilson v, Feb 21 2005 *)

CROSSREFS

Sequence in context: A099731 A091306 A073048 * A169841 A084341 A054513

Adjacent sequences:  A102255 A102256 A102257 * A102259 A102260 A102261

KEYWORD

base,easy,nonn

AUTHOR

Alexandre Wajnberg and Eric Angelini, Feb 19 2005

EXTENSIONS

More terms from Robert G. Wilson v, Feb 21 2005

STATUS

approved

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Last modified February 19 18:31 EST 2018. Contains 299356 sequences. (Running on oeis4.)